Pot-draining device for glass-blowing machines



Jan. s, 1929. 1,698,000

F. A. OST

INVENTOR: Freier/6% ./Z. UJZ

A NOR/VES'.

Jan. 8, 1929'. 1,698,000-

F. A. OST

POT DRAINING DEVICE FOR GLASS BLowING MACHINES 2 Sheets-Sheet 2 Filed April so, 1924 ATTORNE Y.

Patented Jan. 8,1929. .f

Niinn stars FREDERICK A. 0ST, OF COFFEYVILLE, KANSAS. v

roT-DnAiniNe DEVICE' ron eLAss-iBLowINe inficni'nns.

Appiication ined April 3o, 1924. seriai No. 709,947.

' residue glass and causes the same to readily drain from the pots.

Another object is ythe provision of a fur nace in which the combustion chamber is.

so constructed that two pots may be drained at the same time from a single furnace and thereby facilitate the drainage operation.

A further object is to provideA a balanced tiltable support for the potv revolving mechanism, said balanced support providing means whereby the pots may be' readily placed in or removed from the `ends of the combustion chamber.

Another Objectis to provide'electrically controlled means for actuating the tiltabley support and the pot-revolving mechanism mounted upon said support, s aid elecn trically-controlled means embodying a circuit breaker whereby the circuit for actuating the pot revolving vmechanism is automatically cut oft' as said pot is swung to position in the furnace. Y

Other objects will hereinafter appear and in order that the invention may be fully understood, reference will now bealiad to the accompanying drawings, in which:

Fig. 1 is a broken side elevation ofthe machine lshowing two pots in position in a single furnace. l

Fig. 2 is a broken plan view of the parts shown by Fig. 1, vwith one of the pots removed. v p

Fig. 3 is a broken side elevation ofthe machine with one of the tiltable supports rocked backwardly preparatory to the place.

Vment or removal of one ofthe `pots'froin the furnace. f

Fig. 4 is a detail front elevation of two of the pots and a portion of theirfsupporting mechanism, the pots vbeing partly rotated from the position they occupy when one is in position in the furnace;

Fig. 5 is a ldetail elevation of worm gearing embodied in carrying out the invention.

Fig. 6 is a diagram of the circuits.

In carrying out the invention, I employ a furnace 2', two sides 2a, of which slope wardly towards each other,vas` best. shown wenn] by Fig. 1. Said furnace 2 has a substantially V-shaped combustion chamber f3`hav-' ing ends which are preferably circular and j arranged at the sloping walls 2a. Saidcom.- bustion chamberVv 3 is heated by suitable means such as a gas burner A, and has an outlet 2e'at its'lower portion for the escape of the melted residue drained from the pots 4, vwhich latter are of the same shape as the ends ofthe combustion chamber 3 in order toffit within said ends.

The pots 4 are supported in pairs as best shown by Figs. 1, 3 and 4, and each rests upon a base 5 uponwhich it'isremovably secured by suitable' means such as clamps 1.6.A rIhe bases 5 are mounted in pairs upon a rotary head 6 arranged 'adjacent to the upper end of the column B of a tiltable frame consistingof said column-"B, members 14 exl tending rearwardlyy from` saidV column B, braces 13 connecting the column B and said members 14, anda block@ fixed to the lower` end of the column B and connected to a'base D by a pivot E. The rear portions of thel members 14 of the tiltable frame are pro# vided with a counterbalance consisting pref-y erably of a receptacle 17, which may be filled with sand or other suitable L'material to counterbalance the twov pots 4 and their revolving mechanism mounted at the upper portion of said column B.'Y

Referringnow to the mechanism yfor re-` volving the potsf4, 6@ designates a stub'sliaft fixed to the rotary head 6 and'journaled :in a bracket 11 bolted or otherwise secured to the upper end of thev column B.k `Said shaft 6a is driven byan electric motor 8 through a train consisting' of a worm 8a, a worm wheel 8b, a pinion '10, and a cog wheel 9. r1`hemotor Sis mounted upon a bracket 12l carried by the braces 13 and the column B of the tiltable frame, while the shaft of the pinion 10 and worin wheel 8"n is mounted Vin a housing 7 and afbearing- 15 fixed to the said bracket 12 and thev column B, respectively. Y

Referring now to themechanism for coiitrolling the tiltable frame, 21 designates a rock shaft provided with" fixedly mounted cranks 22 and 25, which latter isconnected to the rear ends` of the tiltable frame vmembers 14 by a link 26 which is connected to said crank 25 and themembers k14 by pivots 27.Y The crank 22y is connected to the plunger 24 of lamotor 29, which is 'supported at a suitable height above ,the rock shaft 2l by a standard 28. The motor 29 may be of' .any lsuitable type and-in ythe drawings I have shown it in the form ofk a solenoid.

In, practiceY the tilt'ab'le frame is tilted d rearwardlyV to the position disclosed by Fig.

3,' by thi-owing the switch 30 into engagement with the contacts 35.4 [This establishes aV .circuit from Athe main" 36 through a wireJ` 38, one side ofa double-throw switch 30,l

, a Wire 39, the lower part of the solenoid 29,

. a wire 40, `the opposite side of the switch 30,;

mentioned,

a wire 4l and the ina-in 42.. .Said circuit i eiiergizcs the lowerportion of the solenoid 29. causing its )lungo/r 24 to move doi n l h b.

wardly and through the iiitermcdiacy of its connections with the members 14 of the tilt-v able frame tilts said frame rearwardly as As the frame tilts rearwardly a motor circuit is established from the main 36,.through a wire43, one side'of a ymarinai switch 44, a 'wire 4?,a` motor 18,v a wire 48,

va circuit breaker 19e-20, the opposite side of the switch 44, a Wire 50, and the inainf42.V

The `last-mcntioned circuit energizes the motor 8 which, thi'ough the intermediacy of the intervening train, rotates the pots 4 until one is in position to enter the adjacent open end of the combustion chamber' 3, disclosed by Fig. 3. .The position of `the i switch 30 is then reversed to close a circuit through the upper portion of the solenoid 29, through wires and 5l. The solenoid 29 then lifts Ythe plunger 24, which, through the intermediacy ofthe intervening mechanism, `swings the tiltable frame forwardly until the. lowermostpot 4 enters the adjacent end of the combustion chamber 3, where it is subjected'to the heat of the furnace until the residue is drained out.

`During such draining operation the upper pot 4 is in position for carrying onthe glass blowing processin vthe usualV manner. After the foregoing Voperations have been completed the tiltable frame is again swungv b'ackwardlyv to the position disclosed byQFig. B. This last operation closes the circuit breaker 19-20 rwhich y closes the motor circuit and the vpots 4 are rotated a half revolution to bring the undrained pot in position` to enter the open adjacent end YofV 'the combustion chamber 3, The unvvery little poweris required to move the pots V,4in and out of the adjacent end of the com- `bustion chamberf :It-is also apparent that by automatically opening` the circuit breaker 19-.20 when the tiltable frame is adjusted forwardly to place a pot in the furnace that the motor circuit is automatically interrupted, and hence there Will be no danger of the pots4being'rotated while one is enterin'gthe furnace, and hence' damage to the pots, the furnace .and the rotary mechanism will be avoided.

While I. have shown and described the preferred form of my invention, rl reserve: t ;'ht-to make such changes in the con- Y the i struction, combination and arrangement of jarts as nropei'l fall Within the sairit and l. Y Y i n scopeof the invention as claimed. l v

Having thus described my invention, what I claim .and desire `to secure by Letters Patent, is: f Il. In amachine of the character described a rockable frame, a pair of pots rotatably associated with said frame, and means Vfor counter-balancing said frame and pots.

.2. In a machine of the character described a vpivotally-mouiited column, ,mechanism rotatablyassociated with said column and arranged to support a pair of pots, and means for actuating said column tol cause said .pot-supporting mechanism toy place one siel of the pots in a furnace andfhold 'theconry panionA pot in position forcarrying'on a glass blowing process. Y

3; In a machine of the character described a pivotally-mounted column, mechanism rotatably associated with' saidycolumn and arranged to support a pair of pots, electrically controlled mechanism for rotating said pot supporting mechanism, means for actuating said column to cause the pot-'su'pporting mechanism to place either pot in a furnace andsupport the vcompanion pot in position for carrying on a glass blowing operation, and means for interrupting the y `'circuit ofthe pot rotating niechanism'as said column moveslto place apot in the furnace. v i

4. In a machine of the character described a pivot-ally-mounted column, mechanism rotatably associated with said column and ieri arranged to support a pairof pots,electrii, c

cally controlled mechanism for rotating said pot-supporting mechanism mounted on said column, means for actuating said, column to cause the potfsupporting mechanism to breaker in the circuit'of the pot rotating mechanismy which is opened as said column moves to place a potin the furnace.

place either potin a furnace and supportthe y companion pot in position fory carrying on a glass blowing operation, and a circuit 5. In a machine ofthe character describe-d 'i a pivotally-mounted frame, mechanisinrof tatably associated with said .frame and arranged to support a pair of pots, a rockshaft provided with cranks,` a link cony A,

`necting the pivotally-inounted frame to one of said cranks, and electrical]y controlled motive means connected to another crank to actuate said rocleshaft.

6. In a machine of the character described a pivotally-mounted frame, mechanism rotatably associated with said frame and arranged to support a pair of pots, a rock-shaft provided with cranks, a link connecting the pivotally-mounted frame to one of' said cranks, anda solenoid connected tol another crank to actuate said rock-shaft.

7. In combination a furnace having two oppositely-disposed side walls sloping towards vthe top and a combustion chamber extending through said furnace and terminating at said sloping walls, tiltable trames adjacent to the sloping walls of the furnace, and potcarrying means mounted on said trames and adapted to place pots mounted on said carrying means within the ends of said combustion chamber.

8. In a machine ci' the character described, an upwardly extending column tiltably mounted at its lower portion, and a pot operably mounted at the upper portionl of said column.

9. In a machine of the character described, an upwardly extending member tiltably mounted at its lower portion, a pair of pots operably mounted at the upper por tion of said member, and mechanism for tilting said member backwardly and forwardly.

10. In a machine of the character described, an upwardly extending member tiltably mounted at its lower portion, a pot operably mounted at the upper portion of said member, and counterbalancing means for said member.

1l. In a machine ot' the character described, an upwardly extending column tiltably mountedV at its lower portion, rotary pot-supporting means at the upper 'forward portionV of said column, and electrically driven mechanism Jfor rotating said pot-supporting means and mounted atv the rear of the column to partially coiinterbalance the latter. l

12. In a machine of the character described, an upwardly extendingmember tiltably mounted at its lower portion, a pair of pots oper-ably mounted at the upper portion of said member, an element projecting v. from said member, and mechanism for rais- Y` ing and lowering said element and thereby actuating said member.

13. In combination with a furnace having la combustion chamber with 'a circular end,

a circular pot adapted to close said end, an upwardly extending member tiltably mounted at its lower portion in front of said furnace and mounting said pot at its upper portion, and mechanism for causing said member to carry the pot into and out of the Y circular end of the combustion chamber. In testimony whereof I ailix my signature.

FREDERICK A. OST. 

